abstract
Laser additive manufacturing is a layer-by-layer process that offers flexibility in manufacturing complex shapes without dedicated tools. It is also used for repairing high-cost parts, making it attractive to various industries. This paper reviews the use of metal powder materials and process parameters in Direct Energy Deposition, with a focus on Laser Metal Deposition, but also covers other methods with similar approaches. The paper starts by describing the metal powder manufacturing and characterization processes for better understanding of the raw materials. Next, it provides information on the most commonly used machines on the market. Then, a number of reported studies are analyzed to determine the possible range of working parameters and feasible results. Finally, a recommended range of processing parameters is provided based on the reported studies to help manufacturers select the best options.
keywords
316L STAINLESS-STEEL; FUNCTIONALLY GRADED MATERIALS; DIRECTED ENERGY DEPOSITION; REPAIR TECHNOLOGY; COMBINING WIRE; INCONEL 625; MICROSTRUCTURE; TI-6AL-4V; ALLOY; SUPERALLOY
subject category
Optics; Physics
authors
Ghasempour-Mouziraji, M; Lagarinhos, J; Afonso, D; de Sousa, RA
Groups
Projects
Sistema integrado de fabrico aditivo e tratamentos térmicos localizados baseado em lase (Laser4AMTT)
CICECO - Aveiro Institute of Materials (UIDB/50011/2020)
CICECO - Aveiro Institute of Materials (UIDP/50011/2020)
Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)
acknowledgements
The authors would like to acknowledge the financial support from Laser4AMTT project. This is a project in collaboration with Macro Moldes para Plasticos Lda and co-financed under Portugal 2020 and European Regional Development Fund, through COMPETE under the scope of the project POCI-01-0247-FEDER-039893. This work was also developed within the scope of the projects UIDB/00481/2020 and UIDP/00481/2020-Fundacao para a Ciencia e a Tecnologia; and CENTRO-01-0145-FEDER-022083-Centro Portugal Regional Operational Programme (Centro2020) , under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund. This work was also developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020 & LA/P/0006/2020, financed by national funds through the FCT/MEC (PIDDAC) .